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EL84 Guitar Amplifier

Recently I’ve designed and built a simple yet very nice playing guitar amplifier. I’ve designed it keeping in mind that

I’ve made this cute 3D printed holder for EL84 tubes. It’s compatible only with western made tubes not Russians/Eastern block

Some time ago I’ve won a 63×63 NaI(Tl) crystal for around 80€ at eBay. It is an SDN52 a special

How to make a scintillation probe with aluminium enclosure? Is not that hard if you have a lathe, a mill

This guide is under continuative update. updated 9 June 2019 updated 12 June 2019 updated 21 June 2019 Intro Many

Today I’ve made a new order from The Rad Lab. This time I’ve found on it’s ebay store a stock

Some months ago I’ve received from the local A.R.I. radio club an old antenna rotor. I think it is a

I’m an ham radio operator since year 2008. I’ve started this hobby with simple and relatively cheap equipment: an FT757GX

This post describes my standard DC-DC HV converter You know, to power up geiger tubes or photomultipliers there the need

My military HF manpack radio PRC320, 3 months after I’ve bought it, started to make a whistle and was not